condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 9.111376666666667 2.17043 22.6065 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0